<input production-qty type="text" class="input-mini" maxlength="3" ng-model="day.qtyA" ui-event="{ blur : 'updateProduction(day)' }" ng-disabled="day.type=='H'">

<input production-qty type="text" maxlength="3" ng-model="qty1">

.directive('numeric', function() {
    return function(scope, element, attrs) {

        $(element[0]).numericInput({ allowFloat: true });

    };
})

<input type="text" numeric />

$scope.blockNonNumber = function (val, field){

       $scope[field] = val.toString().replace(/[^0-9]/g, '');

    }

<input type="text" ng-model="price" ng-change="blockNonNumber(price, 'price')" pattern="[0-99]">